Official MCP Registry · published 3h ago

Sendinel

ai.sendinel/mcp-server

AI-controlled email ops for campaigns, contacts, segments, analytics, and sending.

Version: 1.0.180
Runs: Hosted or local
Packages: npm
Published: Nov 8, 2026

Get started

Add it to your agent

claude mcp add sendinel -e SENDINEL_API_KEY=… -- npx -y @sendinel/mcp-server@1.0.180

Run in your terminal. Add --scope project to share it with your team through .mcp.json.

codex mcp add sendinel --env SENDINEL_API_KEY=… -- npx -y @sendinel/mcp-server@1.0.180

Saved to ~/.codex/config.toml.

{
  "mcpServers": {
    "sendinel": {
      "command": "npx",
      "args": [
        "-y",
        "@sendinel/mcp-server@1.0.180"
      ],
      "env": {
        "SENDINEL_API_KEY": "…"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (or .cursor/mcp.json in a project).

{
  "servers": {
    "sendinel": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@sendinel/mcp-server@1.0.180"
      ],
      "env": {
        "SENDINEL_API_KEY": "…"
      }
    }
  }
}

Add to .vscode/mcp.json, then start it from the MCP view in Copilot Chat.

gemini mcp add sendinel npx -y @sendinel/mcp-server@1.0.180

Saved to .gemini/settings.json.

claude mcp add --transport http sendinel https://sendinel.ai/mcp

The project also runs a hosted endpoint, so you can skip the local install.

Before you start

Environment variables

SENDINEL_API_KEYrequiredsecretSendinel API key. Required for stdio startup and scopes the server to a project.